Pipe wrench and cutter.



M. B. SHERIDAN.

PIPE WRENCH AND CUTTER.

APPLICATION FILED 1130.15, 1910.

1,032,784. I Patented July 16, 1912.-

2 SHEETS-SHEET 1. V

BIA PLANOGRAPH 60.. WASHINGTON, n. c.

M. B. SHERIDAN.

PIPE WRENCH AND GUTTBR.

APPLICATION FILED DEC. 15, 1910.

Patented July 16, 1912.

COLUIBIA PLANOGRAPH (JO-,WASHINUTON, D. c.

Unit s PIPE WRENCH AND CUTTER.

Specification of Letters Patent.

Patented July 16,1912.

Application filed December 15, 1910. Serial No. 597,497.

T 0 all whom it may concern:

Be it known that I, MATHEW B. SHERI- DAN, a citizen of the UnitedStates, residing at York, in the county of York, State of Pennsylvania,have invented certain new and useful Improvements in Pipe Wrenches andCutters; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to certain novel and useful improvements in achain pipe wrench and cutter.

The object of the invention resides in the construction of a wrench ofthe character named wherein the adjustment of the chain will befacilitated and in which the jaw plates may be reversibly mounted so asto present different gripping faces for cooperation with the chain.

A further object of the invention resides in constructing the jaw plateswith a pair of toothed gripping faces which are curved and extend indivergence from the forward end of the medial line of said plates withdifferent radii, whereby the wrench is rendered adaptable for a widerrange of work.

With these and other objects in View, the invention consists in thedetails of construc tion and in the arrangement and combination of partsto be hereinafter more fully described and particularly pointed out inthe appended claim.

In describing the invention in detail, reference will be had to theaccompanying drawings, wherein like characters of reference indicatecorresponding parts in the several views; and in which,

Figure 1 is a side elevation of a wrench constructed in accordance withthe invention, the same being shown in operative position with respectto the pipe; Fig. 2, an edge view of what is shown in Fig. 1; Fig. 3, apartial longitudinal section on the line 33 of Fig. 52; Fig. 4c, aviewsimilar to Fig. 1 showing the wrench utilized as a pipe cut-- ter; Fig.5, a section on the line 55 of Fig. 4; Fig. 6, a detail perspective viewof one of the jaw plates of the wrench; Fig. 7, a detail perspectiveview of the interchange able bridge pin; and Fig. 8, a detailperspective view of the detachable pipe cutter.

Referring to the drawings, the wrench is shown as comprising a pair ofspaced jaw plates 10 and 11 which are secured together by means of abolt 12. These jawplates each have their forward side edges providedwit-h teeth 13 and 1% respectively. These side edges are curved andextend in diver gence from the forward end of the medial line of saidplates with different radii, the corresponding curved edges of differentplates having the same radii. The rear edges of the plates 10 and 11 areeach provided with corresponding recesses 15 disposed at corremedialline of said plates. The rear portions of the side edges of each of saidplates are provided with recesses 16 for a purpose that will presentlyappear. Formed in each of the plates 10 and 11 adjacent their rear edgesand on opposite sides of the medial lines thereof are openings 17.Pivotally mounted upon the bolt 12 is a handle 18 which has securedthereto one end of a chain 19 whose pivot pins project laterally of thelinks of said chain at each side, as at- 20. In use, the chain is passedaround the jaw plates 10 and 11 so as to confine a pipe between the sameand one of the toothed side edges of said jaw plates, and the free endof said chain is then passed between said jaw plates and detachablysecured to the latter by engaging the lateral extensions 20 of the pivotpin in the recesses 15 formed in the rear edges of said jaw plates. Theextensions 20 of an adjacent pivot pin when the chain is thus detachablysecured to the jaw plates are disposed in the recesses 16 so as toposition the chain in proper relation to the recesses 15 and prevent thedisengage ment of the free end of the chain during the manipulation ofthe wrench. A bridge pin 21 is detachably mounted in alining openings 17and is adapted to be engaged by the handle 18 during its movement in onedirec' tion to effect a movement of the jaw plates so as to secure afresh grip upon the pipe for the further manipulation of the latter.

The jaw plates 10 and 11 are provided at their forward end with aliningopenings 22 in which is adapted to be detachably mounted a pipe cutter23.

From the construction previously described, it will be apparent that thejaw plates 10 and 11 may be reversed so as to present the desiredtoothed side edge thereof for cooperation with the chain, and as saidside edges have curvatures traced with different radii, the wrench maybe adapted to a greater range of work.

spending distances on opposite sides of the 1Q handle, said chain'comprising a plurality of links of a width to pass between said plates,pins connecting said links and projecting beyond the opposite sidesthereof for engagement with the notches formed in the sides and ends ofthe plates, when the links are passed between said plates and means forretaining said plate upon said handle.

In testimony whereof, I afiix my signature, in presence of twowitnesses.

MATHEW B. SHERIDAN.

WVitnesses L. B. SELLERS, 7 ELMER D. QUIOKEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents,

WashingtomvD. 0.

